Finishing machine



March 26, 1940. E. o. KLAAS ET AL FINISHING MACHINE Filed Sept. 10',1938 4 Sheets-Sheet 1 m m 2mm N A M WM 0 NQH W WW E. o. KLAAs n m. 57

FINISHING MACHINE Filed Sept. l0, 1938 4 Sheets-Sheet 2 IN VENTORS[oh/11v 0. Kums ATTORNEY.

March 26, 1940. E. o. KLAAS 51' m. 2,194,757

V FINISHING MACHINE Filed Sept. 10, 1938 4 Sheets-Sheet 3 INVENTQRSfowl/v 0. KLAAJ BY [uwaoo H MEYER:

March 26; 1940- E; o. KLAAS ET AL FINISHING MACHINE Filed Sept. 10, 19384 Sheets-Sheet 4 maH m WW a,

FIIIHHHHH HIIIIIIIL! F ILPITIIU Www ha Patented Mar. 26, 1940 land,Ohio, assignors to The Klaas Machine and Manufacturing Company, acorporation of Ohio Application September 10, 1938, Serial No. 229,364

Claims. (01. 51-412) Our invention relates in general to a mechanism forfinishing the peripheral edges of battery top members and the aperturestherein and more particularly to a mechanism of the class describedwhich is completely automatic in operation.

In the manufacture of the hard rubber covers of battery boxes, it isnecessary to finish the peripheral edges and the apertures-therein whichare rough and irregular as they are removed from the molds in which theyare formed. Ehe present invention will be describedfwith reference to amachine for finishing the hardrubber covers of battery boxes, but it isto be clearly understood that theinvention is not limited to thisspecific 7 3d application and when the Words battery top members areused in this application, it'isto be clearly understood that these wordsare not limited to hard rubber covers for battery boxes but includes anyarticle having marginal edges 0 to be finished.

An object of our invention is the provision of a mechanism of the classdescribed which will finish the peripheral edges of battery top membersand the apertures therein without any manual work, except for thefeeding of the battery top members into the machine ormechanism.

Another object of our invention is the pro vision of guiding the batterytop members through the mechanism by means of resilient engaging memberswhich engage the lateral slop ing sides of the battery top members.

to Another object of our invention is the provision of moving thebattery top members through the machine at spaced distances between thesame by 35 reciprocating or actuating feed means which, upon the forwardmotion of the reciprocation, engages and moves the battery top membersforward to the next successively advanced positions and which, upon theterminationof the rearward movement of'the reciprocation; engages thenext rearwardly positioned battery top members in readiness for the nextsuccessive advancement.

Another object of our invention is the provision of finishing theapertures in the battery top mem- 45 hers as the battery top membersremain stationary during the rearward movement of the reciprocation ofthe feed means.

Another object of our invention is the provision of coordinating thefeed means which moves the battery top members progressively through thefinishing mechanism and the aperture finishing means to givecompleteautomatic performance throughout the entire travel of the battery topmember through our mechanism.

Another object of our invention is the provision of fluid controlledarrangements for c0-ordinat ing the several finishing operationsperformed by our machine in which the fluid controlled arrangements aregoverned by a plurality of cam actuating members driven from a singleshaft.

Another object of our invention is the provision of positioning thegrinding wheels at a slight angle with reference tothetravel of thebattery top members, particularly with the entrance edge of the grindingwheels closer together than the exit edge of the grinding wheels so thatfreedom of travel is provided to the battery top members as they passbetween the grinding wheels.

Another object of our invention is the provision of adjustment means tocause the battery top members to move substantially square between thegrinding means to insure that they move. in a true right angular line.Another object of our invention is the provision of adjustment means toaccommodate battery top members of different dimensions andconfigurations.

Other objects and a fuller understanding of our invention may be had-byreferringto the following description and claims, taken in conjunctionwith the accompanying drawings in which;

Figure 1 represents a diagrammatic illustration of our invention andparticularly shows the travel taken by the battery top members and thefinishing actions performed thereon as they travel from the entrance endofour mechanism tothe exit end, Where the battery top members arecompletely processed; 1

Figure 2 is a diagrammatic illustration of the fluid controlarrangements to co-ordinate the several processing operations performedupon battery top members as they travel through our mechanism;

Figure 3 is a fragmentaryyiew showing the Figure 6 is a plan view of thesecond reciproeating feed means of our mechanism which feeds the batterytop members lengthwise through a second pair of spaced grinding means togrind the longitudinaledges of the batterytop members, and shows inaddition diagrammatically the aperture finishing means for finishing theapertures in the battery top members as they are progressively advancedto the second grinding means;

Figure 7 is a cross-sectional view taken along the line 1-! of Figure 6;

Figure 8 is a cross-sectional view taken along the line 88 of Figure, 6;

Figure 9 is a fragmentary plan view of a portion of Figure 6, andillustrating particularly the arrangement of a trap or a resilient latchwhich prevents interference between the first members, as they are movedprogressively and intermittently along and towards the second grindingmeans;

Figure 11 is a front elevational view of the aperture finishing meansshown in Figure 10;

Figure 12 is a top plan view of a battery top member which may befinished by passing it through our mechanism, and

Figure 13 is a longitudinal cross-sectional view taken along the linei3l3 of Figure 12, and shows by dash-and-dot lines the position of theaperature finishing means for processing the aperatures in the batterytop members. I

A typical battery top member is shown in Figure 12, and in the moldingof these battery top members, the peripheral edges and the aperaturestherein, as they are taken out of the molds, in which they are formed,have rough or irregular edges which must be finished. In the finishingof the peripheral edges and the apertures in the battery top members bymeans of our machine, the battery top members are first fed into themachine broadwi'se and thence in the first reciprocating feed meanswhere the end edges are ground as they progressively pass at spaceddistances between the first pair of spaced grinding means. After thisthe battery top members are delivered to a second reciprocating feedmeans, which is positioned substantially at right angles to the firstreciprocating feed means, where the battery top members areprogressively advanced at spaced distances between the second pair ofgrinding means where the longitudinal edges of the battery top membersare ground to a smooth finish. As the battery top members areprogressively and intermittently advanced to the second pair of grindingmeans, the peripheral edges of the apertures are processed by means ofgrinding ing tools which move in-and-out in timed sequence. Thepositions occupied by the grinding tools for smoothing the edges of theapertures in the battery top members are illustrated by the dash-and-dotlines in Figure 13. Our mechanism is adapted to finish battery topmembers of a large variety and of different sizes and of differentaperture arrangements. In certain battery top members, the apertures areprovided with lead inserts which must be processed, and in these batterytop members the working tools are designed to have a working end to givethe proper inside and outside finish to the lead inserts.

With particular reference to Figure l; diagrammatically illustrating theseveral operatively associated parts to perform the finishingoperations, our invention comprises generally an advanced feed means 2%,which delivers the battery top members broadwise to the firstreciprocating feed means 2! where the battery top members are advancedprogressively at spaced distances between the same through the firstpair of spaced grinding means or wheels 22 and 23 after which thebattery top members are delivered to the second reciprocating feed means2:1 which is positioned substantially at right angles to the firstreciprocating feed means 2i. The second reciprocating feed means 124!progressively advances the battery top members longitudinally or lengthwise to the second pair of spaced grinding means or wheels 25 and 26.The apertures in the battery top members, as they are progressively advanced along by the second reciprocating feed means 26, are processedfrom above by means of the aperture finishing means 2'? and areprocessed from below by means of the aperture finishing means, 28.

The advanced feed means 25! may be of any particular construction andcomprises generally a bed arrangement 35 having side members 32 and 33between which an endless conveyor operates around spaced sprocket wheels3% and 35. The endless conveyor is provided with transversely arrangedfeed members 35 which engage the rearward longitudinal side edges of thebattery top members and move them at spaced dis-- tances to the firstreciprocation feed means 2!. The endless conveyor having the transversefeed members 36 may be driven by means of a shaft 31 having a sprocketwheel 38 driven by a suitable chain from a sprocket wheel 39 actuated bya motor-driven gear reducer 443. As. the battery top members approachthe first reciprocaticn feed means 25, they are-guided betweenconverging guide members 4 and 45 which direct the battery top membersto the first reciprocating feed means 2!. A narrow space is providedetween the end of the advanced feed means 29 and the reciprocating feedmeans 2! to afiord room for the transversely arranged feed members 36 topass therebetween. Positioned in the narrow space is a spring trap door4-5 which may be biased downwardly to allow the transversely arrangedfeed member 36 to pass therethrough.

Just as soon as the transverse arranged feed member 36 passestherethrough, the spring trap door 45 swings upwardly and provides asmooth fiat surface for the battery top members to move upon the firstreciprocating feed means 2!.

The first reciprocating feed means it! comprises generally a base uponwhich the battery top members may slide, and fcur sets of longitudinallyspaced, hingedly mounted engaging means ,52 which engage the rearwardlongitudinal side of the battery top members and progressively move themforward broadwise between the two grinding means and 23. As illustrateddiagrammatically, the first reciprocating feed means 2i is actuated by atwo-way piston mechanism M, in which the dash-an(.i-dot line fi lindicates the actuating mechanism between the piston 41 and the firstreciprocating feed means 2E. The two-way piston mechanism 41 is governedby a fiuid control valve 48 which is in turn governed by a pilot valve55 actuated by a cam 5i mounted upon the shaft 31. The motor drivenfiuid pump 49 provides a source of fluid under pressure for actuatingthe fluid parts of our mechanism.

The second reciprocating feed means 24 is actuated by a two-way pistonmechanism 56 which anism 55.

agrammatically, the four longitudinally spaced engaging means til areactuated by. suitable connections beneath the'base t2 and the fourlongitudinally spaced engaging means 65 are actuated by suitableconnections positioned above the base 62. The actuating connections ormechanism for operating the longitudinal engaging means 60 and t! isindicated'by the dash-and-dot line 64 which leads from the two-waypiston mech- As the engaging means 52 of the first reciprocating meansZl', and the engaging means 66 and 5! of the second reciprocating meansit, are actuated, they engage the battery top members upon their forwardmovement and ward side at the termination of the stroke. ,As thebatterytop membersremain stationary during the rearward movement of thereciprocation of the second feed means 24, the apertures in the batterytop members are processed from above and from below.' The processing ofthe apertures in the battery top members from. above is performeddbythree spaced grinding orwork tools M; 75, and i6 carriedby' a. suitablehead indicated by the""dashand-dot line 61 having threeindividualsub-cross-heads. The work or grinding tools 3'4 #5, and 16 arerespectively and individually actuated by electric 'motors TI, 72,

and 5-3 which are separately carried by the subthree sub crossaheads areeach adjustable in three dimensions, The set screw adjustments 68 arearranged to actuate the individual sub-cross heads endwise inahoiizontal plane, the set screw adjustments 5d are, arranged to movethe individual sub-crosaheads broadwise in a horizontal plane, and. theadjustment set screws H! are arranged to move the individualsub--crossheads in a vertical plane. The purpose of the individualizedadjustments of the sub-cross-hea'ds is to accommodate the positioning ofthe grinding or work tools M, '55, and it with reference to theapertures of the battery top members of anypar ticular arrangement Theentire cross-head 61 is arranged to be actuated by a fulcrum member 80which in turn is actuated by a two-way piston mechanism 8! h 3 isconnected td a dash pa BS indicated by the referencecharacter 85. Theactuating structure for operating the entire cross head 6! by means ofthe fulcrum member 80 is indicated by the reference character I 41. 1

The processing of the apertures upon the underneath side of the batterytop members is periormed'by the work or grindingtools 99,100 and Jillcarried respectively, by the" three sub-crossheads oftheentirecross-head arrangement indicated by the reference character 92. The workor grinding tools 99, Hill and i! are respectively actuated by theelectric motors 96, 91 and 98 carried respectively by the threesub-cross-heads of the entire cross-head $2. Each of the sub-crossheadsis arranged to be adjustable inthree dimensions. The sub-cross-heads maybe individually adjusted edgewise in a horizontal plane by means of theadjustment screws 95 and may be adjusted broadwise in a horizontal planeby the adjustment screws Stand may be adjusted vertically by theadjustment screws 93 'Forthe battery top member shown in Figures 12 and13, only the middle finishing tool Hit! is used underneath. The entiremovement of the complete cross-head S2 is actuated by the end 86 of thefulcrum member fill through means of 'a structural arrangement indicatedgenerally 'by the reference character M8. The movement of the fulcrummember 636 is arranged to be slow and restrictedas the aperturefinishing means 21 and 28 are brought towards the battery top memhere.The movement, however, is unrestricted as the aperture finishing meanszi and 23 are moved away from the battery top'members. The restrictedmovement ofthe fulcrum member 80 is governed bya one-way restrictionvalve 88 com heated in fluid communication to the piston mechanism 8!.This one-way restriction valve 88 permits fluid to flow restrictedly tothe piston mechanism 8| as the aperture finishing means 2! and 28are'moved towards the battery top members for the finishing process, butallows the fluid to flow unrestrictedly as the aperture finishing means2! and 28 are moved from the battery top member after the finishingprocesses are performed. The cam M controlling the pilot valve 83governs the inand out movement or the aperture finishing means 21 and 28in such sequence that the aperture feeding means 2! and 28 are actuatedtoward the battery top members for processing the apertures therein andaway from the battery top members after the process is finished duringthe interval that thesecond reciprocating feed means moves rearwardlyand when the batterytop members are stationary. In other words, theoperation or timing between the movements of the first andjsecondreciprocating feeding means and the aperture finishing means 2! and 28are governed by the arrangementof the shape of the cams 59 and 84actuated by the shaft 31.

The diagrammatic illustration of the fluid con- 1 to the control valve48. The delivery of the fluid through the pipe I09 to the control valve48 causes the valve arrangements therein to shift and force the fluid-onthe lefthand end of the control valve 48 to flow out through the pipe IID to the pilot valve 50 and thence through port arrangements thereinthe fluid is discharged or drained to the motor driven pump through thepipe H3. Actuation of the control valve assembly within the controlvalve 48 to the left, causes fluid under pressure to be deliveredthrough the feed pipe IRS to the control valve 48 and thence througharrangements of port connections therein the fluid under pressure isdelivered through the pipe II2 to the rear of the cylinder of the pistonmechanism 57. The delivery of the fluid through the pipe I I2 underpressure to the piston mechanism 4! forces the piston rod H6 to theright for actuating the first feed reciproeating means M. The actuationof the piston to the right forces the fluidon the right-hand end of thepiston mechanism 41 therefrom through the pipe III to the control valve48, and from there through the port connections therein,

the discharged fluid flows through the pipes It? and I I3 to the motordriven pump 49. The actuation of the piston mechanism 56 through thecontrol valve 4'! and the pilot 48, and the actuation of the pistonmechanism through the control valve 82 and the pilot valve 83 is thesame as that described with reference to the piston mechanism l!controlled by the control valve 48 and the pilot valve 55. Therefore,the governing of the several parts of our invention is controlledhydraulically by means of the cams 5I 59 and 84 driven by a commonshaft.

A somewhat detailed arrangement of the first reciprocating feed means 2|is illustrated in Figures 3, 4 and 5, in which the piston mechanism 41is arranged through the piston rod I IE to actuate reciprocally thefeeding mechanism forprogressively advancing the battery top members atspaced distances broadwise through the two grinding wheels 22 and 23. Asillustrated, the first reciprocating feed means 2| may be suitablycarried by means of a support or table II! upon which are mounted atspaced distances twoinverted U-shaped brackets H8 and H9. The two spacedU-shaped brackets H8 and H9 are connected to the support III by the capscrews I20 and are arranged to carry the mechanism for carrying out thereciprocating movement. Mounted upon the two inverted U-shaped bracketsH8 and III are four slide bearing brackets I 2| through whichlongitudinal slide rods I22 arranged parallel to each other, are adaptedto reciprocate. Attached to the left-hand end portion of the twoparallel arranged slide rods I22, is a cross-head I23 which is actuatedby the piston rod I I6. The piston rod IIS may be connected to thecross-head I23 in any suitable fashion such as illustrated by thethreaded end, and the cross-head I23 may be connected to the twoparallel slide rods by the cap screws I24. A cushioning pad I25,preferably made from a block of rubber, may be connected to theoutermost end of the piston rod I I6 to take care of any shock as thepiston rod H5 is moved to the right against the piston mechanism 41. Thepad I25 encircles the rod I I 5 and is securely fastened to the rod II 6by any suitable securing means. The position of the pad I25 on the rodII6 is such that the pad I25 strikes theend of the cylinder of thepiston mechanism 41 upon the movement of the rod IIE the fluid is causedto flow through the pipe I09 tothe right in Figure 3 and the illustratednut holds the pad I25 from slipping ofi the end of the rod. The shock isabsorbed when the resilient head I25 engages the end of the cylinder ofthe piston mechanism 41. The outward movement of the piston rod II6 maybe cushioned at its termination by means of a cushioning pad I27suitably mounted upon the top of the inverted U-shaped member H3. Thepad I21 is likewise preferably made of a block of rubber and metalconfining sides and is secured in position, the confining metal sidesbeing bolted or otherwise secured to the top of the inverted U-shapedmember I IS. The position of the pad I21 is such that the end of the rodIIS and illustrated nut upon its end strikes the rubber block of the padI21 upon the movement of the rod H6 to the left in Figure 3. In otherwords, both ends of the stroke of the piston IIB are cushioned by meansof the rubber pads I25 and I21. Positioned parallel to the twolongitudinal slide rods I22 at the inside thereof, are two parallelarranged actuating members I29 which are arranged to hingedly carry thefour engaging means 52 that slide over and engage the rearward side ofthe battery top members as they are pushed forward between the grindingmeans 22 and 23. The engaging means 52 may be hingedly connected to thelower edge of the actuating members I29, see Figures 4 and 5. Theleft-hand end portion of the actuating members I29 are slidablyconnectedto the cross-head I23 by means of the slotted bolt connectionI30. The

Y right-hand end of the two actuating members I29 are likewise slidablyconnected by means of the slotted bolt connections I3I to the ends ofthe two slide rods I22. The actuating members I 29 are arranged to beadjusted longitudinally in order that each set of the engaging members52 may push the battery box covers between the grinding wheels 22 and 23in a square or true alignment. The longitudinal adjustment of theactuating members I 29 may be taken care of in any suitable manner andas illustrated, longitudinal slots are provided in the actuating membersI29 at their left-hand end portions so that by unloosening the nutarrangement I30, the actuating members I29 may be moved longitudinallythereon. Also, the right-hand end portion of the actuating members I29are slotted where the cap screws I3! extend therethrough, so that whenthe cap screws I3I are loosened, the longitudinal members may be moved.

longitudinally by actuating the adjustment screws I32. After theadjustment screws I32 are set, the cap screws I3I and the bolts I39 maybe tightened to set the longitudinal actuating members I29 in a fixedrelationship. The requirement for providing longitudinal adjustment ofthe actuating members I29 arises from the fact that the covers forbattery boxes are not always the same on both ends, such for example,one end may be provided with a boss which means that the engaging means52 attached to the longitudinal actuating member I23 on that particularside must be shifted to accommodate the movement of the battery topmembers between the grinding means 22 and 23 in a square or truealignment. As illustrated best in Figure 4, the base 53 upon which thebattery top members slide may be carried upon a cross member I35connected between the upright portion of the U-shaped support brackets II8 and I I 9.

The piston mechanism 4! is mounted on top of a longitudinal plate I26supported upon each end by the supporting brackets IIBv and H9.

As the battery top members are moved forwardly, they are guided betweentwo transversely 15 1 arranged resilient "guideinembers I33 which are inturncarried by side brackets I34 suitably connected to the inside of theuprightportion'of the inverted U-shaped brackets IIB and H9. The

resilient sidemembers I33 may be constructed of relatively thin springsteel which extend fromone end of the first reciprocating feed means tothe other and whichresiliently engage the sloping ends of the batterytop members as they are moved broadwise between the grinding wheels 22and 23.

The first reciprocating feed means 2I is co-ordi-- nated with theadvanced feed means in such manner that the rearwardmost engaging means52 is in its most rearward position and in readiness to engage therearward edge of the battery top members as they are delivered by thespaced transversely arranged feedmembers 38. I

The forwardmost engaging. means 52 pushes the. battery top members inalignment with the rearwardmost engaging members 60 0f thesecandreciprocating feedmeans, which'is shown somewhat in detail inFigures 5, 6, 7, 8 and 9.

As shown in Figure 5, a spring means 14 positioned above the battery topmembers is arranged to hold thev members down against the base 52 asthey are transferredfromthe first reciprocating feedxmeans 2i to thesecond recip'rocating feed means 24. A springstop member I95is-ernployed to keep the spring means from springing down too far andinterfering with the next forwardly moving battery top member. The fourengaging'means 60 :are arranged to be hingedly carried by a longitudinalmember I38 which in turn is actuated .by the piston rod IS'I driven bythe piston mechanism 56. The four engaging means 60 maybehingedlylconnected to the longitudinal member I and are each. arrangedto extend upwardly through the longitudinal central slot. 63.,in thebase E52. and actuate the battery top. members progressivelyforward, Thereason that the four engaging means Bil are positioned underneath of thebase $2 is that the space abovethe battery I top membersmust'be free'fortheaccess of the grinding or work tools 14, i5 and 'lvfi whichfinishtheapertures in the top ofth'e battery top members. The four, engagingmeans 6|: are hingedly carried by a longitudinal actuating overheadmember M2 which is carried at one end. byan inverted U-shaped bracketI4l reciprocally actu' ated by the slide rods I39 which are connected tothe cross-head I38 actuated by the piston rod As illustrated, thesliderods I39 which :the base 62, and progressively moves the battery topmember toward andqthrough thegrinding or finishing means 25 and26. whichgrindthe longitudinal side .edges members. i

The co-ordinating of the .reciprocating'zmotions of the firstreciprocating feed means 2| and the second reciprocating feed meanstissuch that the reciprocating motion of the first feed means isforwardmost when the .;.reciprocating were? motion. of the second feedmeans is rearward Therefore, the forwardmost engaging. means 52 arepushing the battery box covers in resilient engaging devices I49,

. under and keeps them in moved forward1y. I

of ,the battery, .top

most.

alignment with. the four engaging means-60 of thev second reciprocatingfeed meansat the time that the rearwardmost engaging means 60 ismovingrearwardly under thebattery box cover which is pushed forwardly bythe forwardmo'st] engaging means In order to prevent the rearwarumostengaging means 80 from interfering with the battery box cover just beingpushed forward by the engaging means 52, we provide atrap slide memberI44 under which the rearwardmost engaging member 60 slides upon' itsrearwarumovement of the reciprocating sliding movement The trap slidemember I44 com? 4 prises briefly a plate member hingedly connectedsothat as the rearwardmost member 60moves forward itmay cause the trapplatemember' I44 to swing to the left to permit the engaging means tilto move forwardly in the'longitudinally-central opening 63. Upon thereturn stroke of the engagingmember Gt, it is caused to slide undervneath of the trap slide member I44 and prevent any interference with thebattery topmember Whichhas just been pushed forward by the en:

gagingjmeans 52. As illustrated in Figures 4:, 7' and 8, the base uponwhich the battery top inembers slides is arranged to have anintermediate portion cutaway to provide aflelearance; so that in case"any projection extends below the periph- -eral edges of the battery boxcovers theymay clear within the space provided in the base.

Figure 6, the battery top. members are guided between a longitudinalslide rail I45 and spaced As illustrated,

the engaging devices I49 comprise :a resilient spring which constrainsthe battery box covers over against the opposite guide rail I45} .The

resilient engaging devices, I49 ,arepositioned at,

spaced distances so. that they engage the bat- .te'ry. box coverswhen-they are in the forward-" most position of their reciprocalmovement and constrain them to 1 remain in the forwardmost g positionwhile the. engaging means and GI arebeing moved rearwardly to makeanother; engagement with the succeeding battery box covers. I The guiderail I45.is spaced upwardly from the base' 6 2, so thatthe peripheraledge. on" one side of the batterylbox covers extends there-- 50alignment "as they are shown iiiFigur su o the finishing't means 2? and28 for the apertures in the battery.

box covers may be mounted upona' pivotal struc tu-re having therearwardmost portions pivotally connected to a shaft I46. The fulcrummember .Silis positioned between the two aperf ture finishing means 21and 28 and isarranged to move them in and out from thebattery top coverswhich are being processed. Thestructural features formoving the aperture1i.tiishingmeaz1s 2i and Zt'up and down; by the movement or! the fulcrummember 80, may be of any suitable construction and as shown in Figure11-, a frame like construction Hii may be connected to the piston rod ofthe piston mechanism 85 and,'car-.

ried up-Ito'the cross-header 61. By avsimilar construction the crosshead92 for the aperture.

finishing means .28, mounted underneath the base SZ, may be carried by asuitableconstrue tion indicated generally by the reference character ITherefore, asthe fulcrum is oper-q atedzin; a clockwise direction inFigure 11, the

' aperture finishing means 2! and28; are brought 7 toward the batterytop members and as the fulcrum membertfi is operated in acounter-clockwise direction the'aperture finishing means 21 and 28 aremoved from the work or battery top inembers.

Our invention may be setiin operation by pushing the starter switch 95!!which energizes the motor'for operating the fluid pump 49. After thisthe starter switch ii! for energizing the motor for driving thesprocket'wheel 38 and the shaft 3?, may be pushed for starting theoperation of the advanced feed means'ztl, the first reciprocating feedmeans 2!, the second reciprocating feed means 24', and the aperturefinishing means 21 and 28. When our machine is set in. operation theoperator then places the battery top covers tobe processed in theadvanced feeding means it, so that the battery top covers are deliveredone by one in spaced relation by the endless chain to the firstreciprocating means 21 where the-battery top covers are processed ashereinbefore described.

It is arranged to have an interlocking arrangement between the switch'i5l and I50 in order to prevent the motor at from being started unlessthe fluid operated pump '49 is first in operation to-make certain thatthe continuous processwill be-co-ordinated and prevent the piling up ofbattery box covers in advance of the first I reciprocating means 2! inthe event that the fluid operated pump id is not in operation- Althoughwe have described our invention with. "a certain degree ofparticularity, it is understood that the present disclosure has beenmade only by way of example and t'hat numerous changes in the details ofconstruction and the combination and arrangement of parts may beresorted to without departing from the spirit and the scope of theinvention as hereinafter claimed.

We. claim as. our invention:

1. A mechanism for finishing the peripheral edges ofbattery top membersand theapertures therein, said battery top members having sloping side.and. end portions, comprising, in combina tion, base means upon whichthe battery top members may slide, oppositelyspaced resilient engaging..members arranged above the base means for resiliently engaging theopposite sloping-end portions of the battery top members and causing;the end edges to extend laterally outside of said resilient members,"grinding means spaced on opposite sides of the resilient engaging to thefirst base means, means for causing the forwardmost of said spacedengaging means'to deliver said battery top members to the second basemeans, resilient means for guiding the battery top members along thesecond base means,

second grinding means spaced on opposite sides of thesecond base meansto grind the opposite side edges of the battery top members, second feedmeans to engage the battery top members and move same forward andlengthwise between v saidsecond grinding means to grind the oppositeside edges of the battery top members, said second. feed means havingspaced engaging ing the two feed means and the aperture finishing means.

"2. A mechanism for finishing the peripheral edges of battery topmembers and the apertures therein, said battery top members havingsloping side and end portions, comprising, in combination, base meansupon which the battery top members may slide, oppositely spacedresilient engaging members arranged above the base means forresilientlyengaging the opposite sloping end portions of the battery top membersand causing the end edges to extend laterally outside of said resilientmembers, grinding means spaced on opposite sides of the resilientengaging members to grind the opposite end edges of the battery topmembers, feed means to engage the battery top members and move sameforward and broadwise between said grinding means to grind theo-pposit'e'end edges of said battery top members, said feed means havingspaced engaging means for successively and intermittently moving thebattery top members forward at spaced distances between same, secondbase means positioned substantially at a right angle to the first basemeans, means for causing the forwardmost of said spaced engaging meansto deliver said battery top members to the second base means, resilientmeans for guiding the battery top members along the second base means,second grinding means spaced on opposite sides of the second base meansto termittently moving the battery top members forward at'sp-aceddistances between same, aperture finishing means movably positionedabove and below the second base means for finishing the aperturesin thebattery top members as said battery. top members-are intermittentlymoved forward, fluid means for actuating the two feed means and theaperture finishing means, and

coordinating means for governing the fluid means.

3. A mechanism for finishing the peripheral edges of battery top membersand the apertures therein, said battery top members having sloping sidevand end portions, comprising, in combination, base means upon which thebattery top members may slide, oppositely spaced resilient engagingmembers arranged above the base means for resiliently engaging theopposite sloping end portions of the battery top members and causing theend edges to extend laterally outside of said resilient members,grinding means spaced on opposite sides of the resilient engagingmembers, to grind the opposite end edges of the battery top members,feed means to engage the battery top members and move same forward andbroadwise-between said grinding means to grind the opposite end edges ofsaid battery top memhere, said feed means having spaced engaging meansfor engaging, the battery top members, reciprocating means foractuatingthe spaced engaging means and causing the spaced engaging meansupon the forward movement of the rebase means, resilient means forguiding the bat-.

tery top members along the second base means, second grinding meansspaced on opposite sides of the second base means to grind the oppositeside edges of the battery top members, second feed means to engage thebattery top members and move, same forward and lengthwise between saidsecond grinding means to grind the opposite side edges of the batterytop members, said second feed means having second spaced engaging meansfor engaging the battery top members, reciprocating means for actuatingthe second spaced engaging means'and causing the second spaced engagingmeans upon the forward movement of the reciprocation to move the batterytop members forward to the next successively advanced positions andcausing the second spaced engaging means upon the termination of therearward movement of the reciprocation to engage the next rearwardlypositioned battery top members in readiness for the next successiveadvancement, means for finishing the apertures and causing the endedgesto extend laterally outside of said resilient members, grindingmeans spaced on opposite sides of the resilient engaging members, togrind the opposite end edges of the battery top members, feed means toengage the battery top members and move same forward and broadwisebetween said grinding means to grind the opposite end edges of saidbattery top members, said feed means having spaced engaging means forengaging the battery top members, reciprocating means for actuating thespacedengaging means and causing the spaced engaging means upon theforward movement 'thenext rearwardly positioned battery top members inreadiness for the next successive advancement, second base meanspositioned substantially at a right angle to the first base means, meansfor causing the forwardmost of said spaced engaging means to deliversaid battery top members to the second base means, resilient means forguiding the battery top members along the second base means, secondgrinding means spaced on opposite sides of the second base means togrind the opposite side edges of the battery top members, second feedmeans to engage the battery top members and move same forward andlengthwise between said second grinding means to grind the opposite sideedges of the battery top members, said second feed means having secondspaced engaging means for engaging the battery top members,reciprocating meansfor actuating the second spaced engaging means andcausing the second spaced engaging means upon the forward movement ofthe reciprocation to move the battery top members forward to the nextsuccessively advanced positions and causing the second spaced engagingmeans upon the termination of the rearward movement of the reciprocationto engage the next rearwardly positioned battery top members in readi-'ness forthe next successive advancement, means for finishing theapertures in the battery top members as said battery top members remainstationary during the rearward movement of the reciprocation of saidsecond feed means, and

means for co-ordinating the two feed means and the aperture finishingmeans, and advanced feed means for delivering the battery top members atspaced distances between same to the first feed means.

5. A mechanism for finishing the peripheral edges of battery top membersand the apertures therein, said battery top members having sloping sideand end portions, comprising, in combination, base means upon which thebattery top members may slide, oppositely spaced resilient engagingmembers arranged above the base means for resiliently engaging theopposite sloping end portions of the battery top members and causing theend edges to'extend laterally outside of said resilient members, ri dingmeans spaced on opposite sides of the resilient engaging members, togrind the opposite end edges of the battery top members, feed means toengage the battery top members and move same forward and broadwisebetween said grinding means to grind the opposite end edges of saidbattery topmembers, said feed means having spaced engaging means forengaging the battery top members, reciprocating means for actuating thespaced engaging means and causing the spaced engaging means upon theforward movement of the reciprocation to move the battery top membersforward to the next successively advanced positions and causing thespaced engaging means uponthe termination of the rearward movement ofthe reciprocation to engage the next rearwardly positioned battery topmembers in readiness for the next successive advancement, second basemeans positioned substantially at a right angle to the first base means,means for caustopmembersandmove same forward and lengthwise between saidsecond grinding means to grind the opposite side edges of the batterytop members, said second feed meanshaving second spaced engaging meansfor engaging the battery top members, reciprocating means for actuatingthe second spaced engaging means and causing the second spaced engagingmeans upon the forward movement of the reciprocation to move the batterytop members forward to the next successively advanced positions andcausing the second spaced engaging means upon the termination of therearward movement of the reciprocation to engage the next rearwardlypositioned battery top members in readiness for the next successiveadvancement, means for causing the rearwardmost of the spaced engagingmeans of the second feed means from interfering'with the forwardmost ofthe spaced engaging means of the first feed means, means for finishingthe apertures in the battery top members as said battery top membersremain stationary during the rearward movement of the reciprocation ofsaid second feed means, and means for coordinating the two feed meansand the aperture finishing means.

6. A mechanism for finishing the peripheral edges of battery top membersand the apertures therein, said battery top members having sloping sideand end portions, comprising, in combination, base means upon which thebattery top members may slide, oppositely spaced resilient engagingmembers arranged above the base means for resiliently engaging theopposite slop ing end portions of the battery top members and causingthe end edges to extend laterally outside of said resilient members,grinding means spaced on opposite sides of the resilient engagingmembers, to grind the opposite end. edges of the battery top members,feed means to engage the battery top members and move same forward andbroadwise between said grinding means to grind the opposite end edges ofsaid battery top members, said feed means having spacedengaging meansfor engaging the battery top members, reciprocating means for actuatingthe spaced engaging means and causing the spaced engaging means upon theforward movement of the reciprocation to move the battery top membersforward to the next successively advanced positions and causing thespaced engaging means upon the termination of the rearward movement ofthe reciprocation to engage the next rearwardly positioned battery topmembers in readiness for the next successive advancement, second basemeans positioned substantially at a right angle to the first base means,means for causing the forwardmost of said spaced engaging means todeliver said battery top members to the second base means, resilientmeans for guiding the battery top members along the second base means,second grinding means spaced on opposite sides of the second base meansto grind the opposite side edges of the battery top members, second feedmeans to engage the battery top members and move same forward andlengthwise between said second grinding means to grind the opposite sideedges of the battery top memhere, said second feed means having secondspaced engaging means for engaging the battery top members,reciprocating means for actuating the second spaced engaging means andcausing the second spaced engaging means upon the forward movement ofthe reciprocation to move the battery top members forward to the nextsuccessivelyadvanced positions and causing the second spaced engagingmeans upon the termination of the rearward movement of the reciprocationto engage the next rearwardly positioned battery top members inreadiness for the next successive advancement; aperture finishing meansmovably positioned above and below the second base means for finishingthe apertures in the battery top members as said battery top membersremain stationary during the rearward movement of the reciprocation ofsaid second feed means, fluid means for actuating the two feed means andthe aperture finishing means, and co-ordinating means for governing thefluid means.

'7. In a machine of the character described for finishing the edges ofbattery top members having flanged peripheral edges and sloping sides,

base means upon which the battery top members may slide, oppositelyspaced resilient engaging members arranged above the base means forresiliently engagin the sloping sides of the battery top members andcausing the flanged peripheral edges to extend laterally outside saidresilient members, grinding means spaced on opposite sides of theresilient engaging members to grind the flanged peripheral edges of thebattery top members, and reciprocating feed means for progressivelymoving the battery top members forward between the grinding means atspaced distances between same, said reciprocating feed means havingspaced engaging means which upon the forward movement of thereciprocation engages each of said battery top members and moves thebattery top members forward to the next successively advanced positionsand which upon the termination of the rearward movement of thereciprocation engages each of the next rearwardly positioned battery topmembers in readiness for the next successive advancement.

8; Ina machine of the character described for finishing the edges ofbattery top members having flanged peripheral edges and sloping sides,base means upon which the battery top members may slide, oppositelyspaced thin spring members arranged substantially vertically abovethebase means for resiliently engaging the sloping sides of the batterytop members and causing the flanged peripheral edges to extend laterallyoutside said thin spring members, grinding means spaced on oppositesides of the spring engaging members to grind the flanged peripheraledge of the battery top members, and reciprocating feed means forprogressivelymoving the battery top members forward between the grindingmeans at spaced distances between same, said reciprocating feed meanshaving spaced engaging means which upon the forward movement of thereciprocation engages each of said battery top members and moves thebattery top members forward to the next successively advanced positionsand which upon the termination of the rearward movement of thereciprocation engages each of the next rearwardly positioned battery topmembers in readiness for the next successive advancement.

9. In a machine of the character described for finishing the peripheraledges of battery top members and the apertures therein, base means uponwhich the battery top members may slide, grinding means spaced onopposite sides of the base means to grind the opposite edges of thebattery top members, and reciprocating feed means for progressivelymoving the battery top members forward between the grinding means atspaced distances between same, said reciprocating feed means havingspaced engaging means which upon the forward movement of thereciprocation moves the battery top members forward to the nextsuccessively advanced positions and which upon the termination of thement of the reciprocation of the feed means,'

rearward movement of the reciprocation engages the next reaiwardlypositioned battery top members in readiness for the next successiveadvancement, means for finishing the apertures in the battery topmembers as said battery top members remain stationary during therearward moveand means for co-ordinating the feed means and the aperturefinishing means.

10. In a machine of the character described;

for finishing the edges of battery top members having flanged peripheraledges and sloping sides, base means upon which the battery top membersmay slide, oppositely spaced resilient engaging members arranged abovethe base means for re siliently engaging the sloping sides of thebattery top members and causing the flanged peripheral edges to extendlaterally outside said resilient members, grinding means spaced onopposite sides of the resilient engaging members to grind the flangedperipheral edges of the battery top ing means.

members, and reciprocating feed means for progressively moving thebattery top members forward between the grinding means at spaceddistances between same, said reciprocating feed means having spacedengaging means which upon the forward movement of the reciprocationmoves the battery top members forward to the next successively advancedpositions and which upon the termination of the rearward movement of thereciprocation engages the next rearwardly positioned battery top membersin readiness for the next successive advancement, each said engagingmeans having two finger means arranged to engage spaced portions on thebattery top members, and adjustable means to move the finger means toalign transversely the opposite ends of the battery top members andcause them to move substantially square between the grind- ELLWOOD H.MEYERS. EDWIN O. KLAAS.

